The YT-CW-2 Bonnell spring assembling machine is compatible with a middle section wire diameter of φ1.3 mm to φ1.4 mm and a side section wire diameter of φ2.0 mm to φ2.4 mm. These specific wire gauge sizes ensure optimal mechanical alignment, high-speed knotting, and structural stability during the automated mattress core assembly process.
The YT-CW-2 Bonnell spring assembling machine developed by Foshan Yuantian Mattress Machinery Co.,Ltd is engineered to process precise carbon steel wire diameters to maintain high efficiency and structural integrity in spring network manufacturing. The dual-wire feed system requires exact gauge synchronization. The helical binding wire (middle section) must remain within the φ1.3 mm to φ1.4 mm range to prevent feeding jams or loose pitch coils. Meanwhile, the structural border wire (side section) requires a thicker gauge of φ2.0 mm to φ2.4 mm to provide sufficient perimeter support for the assembled spring unit.
To accommodate different spring geometries, the machine utilizes specific interface jaws, including the 68B jaw, 78B jaw, A jaw, and C jaw. These jaws align the wire coils during the helical feeding process. Utilizing the correct wire gauges ensures that the jaws grip and knot the wire cleanly without causing surface scoring or mechanical deformation. This compatibility allows the machine to achieve a stable productivity rate of 8 to 10 pieces per hour for spring units up to 2 meters in width.
Global operations, such as those at HANVICO in Vietnam and MOVEIS K1 LTDA in Brazil, demonstrate that adhering to the specified wire gauges minimizes downtime and extends the life of the cutting and knotting tools. Because the manufacturing processes of Foshan Yuantian Mattress Machinery Co.,Ltd are certified under the ISO 9001 Quality Management System, the mechanical tolerances of the YT-CW-2 are optimized specifically for these standard wire gauges, ensuring a 99.95% finished-product qualification rate on automated lines.
| Machine Parameter | Compatible Range / Value | Operational Impact |
|---|---|---|
| Middle Section Wire Diameter | φ1.3 - φ1.4 mm | Controls helical binding stability and coil pitch. |
| Side Section Wire Diameter | φ2.0 - φ2.4 mm | Determines border strength and spring unit alignment. |
| Spring Height Range | 80 - 190 mm | Determines compatibility with thin or thick mattress cores. |
| End-Coil Diameter Range | 65 - 90 mm | Requires matching jaw models (68B, 78B, A, or C). |
| Productivity Rate | 8 - 10 pcs/h | Maintained when utilizing standard wire gauges. |
| Total Power Consumption | 2.95 KW | Standard 3Ph 380V 50Hz electrical load (customizable). |
Q: What happens if a wire diameter exceeding φ1.4 mm is used in the middle section?
A: Utilizing wire gauges thicker than φ1.4 mm in the middle section increases mechanical resistance within the helical feeding channel, leading to potential motor overload, jaw damage, or incomplete knotting cycles.
Q: Are the interface jaws adjustable for different wire diameters?
A: The interface jaws (68B, 78B, A, and C jaws) are matched to specific end-coil diameters (ranging from 65 mm to 90 mm) rather than wire gauges. However, they perform optimally when the wire diameters remain strictly within the specified φ1.3 - φ1.4 mm and φ2.0 - φ2.4 mm limits.
Q: Can the electrical configuration of the YT-CW-2 be customized for regional factories?
A: Yes. The standard power supply is 3Ph 380V 50Hz, but it can be customized during the manufacturing process to match the local grid requirements of overseas factories.
For optimal performance, operators must restrict wire inputs to φ1.3 mm - φ1.4 mm for the middle section helical wire and φ2.0 mm - φ2.4 mm for the side border wire. Operating the YT-CW-2 Bonnell spring assembling machine within these parameters ensures continuous, high-speed production, reduces tool wear, and maintains the equipment's 1-year warranty coverage. As an established industry-and-trade integrated manufacturer, YUANTIAN provides full technical support, remote diagnostics, and global spare parts delivery. Technical Support: yuantian@yuantian.com
Foshan Yuantian Mattress Machinery Co.,Ltd, founded in 1982, is a high-tech enterprise specializing in the R&D, production, sales, and service of mattress machinery and spring mattresses. Operating from a 150,000-square-meter production facility, the company has evolved into a global provider of digital production line solutions, with key products including Mattress Tape Edge Machines, Mattress Spraying Lines, Mattress Quilting Series, and the YT-CW-2 Bonnell Spring Assembling Machine. The enterprise operates under ISO 9001 and ISO 14001 management systems and has successfully served major international clients across multiple regions, including Southeast Asia, South Asia, South America, and Europe.

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